baber/WOPTO huggingface dataset:
Patent GB-361905-A (GB)
Title: Improvements in and relating to apparatus for pumping mixed liquids and solids
IPC: F23J1/00
Filed: 1930-06-11
Abstract: 361,905. Regulating liquid levels. ALLEN, F. B., 225, South 15th Street, Philadelphia, U.S.A. June 11, 1930, No. 17892. Convention date, Jan. 23. [Class 123 (i).] In a pumping system for liquid containing solid material such as ashes from a furnace, the level in a sump is maintained about the required level by manual control of the pumps. Two pumps of the kind described in Specification 333,450, [Class 110 (i), Centrifugal and screw fans &c.] ,are employed, controlled by pressure-operated devices a, b, supplied with pressure liquid through pipes c, d. Pipes f, g extend to the bearings of the pumps from the 3-way valves G, H, supplied from a water pipe k through valve j. A pipe m is also provided, having branches n, o, so that water may be supplied direct to the valves G, H when the valve j is closed. The valve j is operated by a float P in the sump, so that below a predetermined level the devices a, b are operated to stop the pumps. Either, but not both, of the valves G, H may be set manually so that pressure water is admitted to the control device even when the valve j is closed. Interlocking mechanism is described whereby only one of the valves G, H may be manually operated at one time. Valves G, H are mounted on a bracket 13 bv means of yokes 15, and the operating member 7 is slidable on a square shaft 16 under control of the guides 18 and slots 17. The guides are so arranged that the member 7 can only be withdrawn from the shaft of its valve when the latter is in a position to close the pipe o (or n) and therefore can only then be used to operate'the other valve. Only one of the pumps can therefore be brought into operation at one time by manual control, and both pumps can only operate simultaneously when the level in the sump rises sufficiently to operate the valve j.
Patent GB-661002-A (GB)
Title: Improved method for the manufacture of cellular thermoplastic products
IPC: C08J9/14
Filed: 1948-07-02
Abstract: <PICT:0661002/IV (a)/1> Cellular articles of a minimum linear dimension of 2 inches are produced by subjecting a mixture of a thermoplastic polymer and a normally gaseous agent capable of being dissolved by the polymer at temperatures below 130 DEG  C., to superatmospheric pressure and a temperature between room temperature and the critical temperature of the agent, for a time sufficient to form a flowable gel containing sufficient agent for it to be vaporized completely upon release of the pressure, and extruding the gel at a temperature below 130 DEG  C. through an outlet of minimum cross-sectional area of a circle of 3/4 inch diameter to form, due to the resultant swelling and cooling, a cellular mass which is at a temperature between -30 DEG  C. and 10 DEG  C. above the heat distortion temperature of the polymer.  In a modification, the gel may be formed by heating under pressure a mixture of the agent and the monomer. Polymers specified are those of styrene, p- and m-chloro-, o- and m-methyl-, o- and m-ethyl-, and p-isopropyl styrenes, methyl methacrylate or vinyl chloride-acetate copolymers. The normally gaseous agent may be methyl chloride, methylene chloride, methyl and methyl ethyl ethers, ethylene, propylene, butylene or a cracked oil gas fraction.  To avoid a pressure drop as the gel flows towards the outlet the gel may be cooled as it approaches the outlet from 10 DEG  to 20 DEG  C. below the main body, or the gas pressure may be increased by introducing before, during or after gel formation an insoluble gas such as nitrogen, carbon dioxide or air.  Fillers such as asbestine and hexachlorobenzene may be introduced to reduce the cell size, which may also, together with the bulk density, be decreased by increasing the proportion of agent.  A suitable apparatus comprises a jacketed pressure-resistant vessel 1 provided with an inlet 3 for the introduction of solids, a valved inlet 5 for the introduction of gas, and a valved pipe 8 which may serve for the introduction of the normally gaseous agent and also as an outlet for the gel. Specification 406,267, [Group V], is referred to.
Patent GB-572412-A (GB)
Title: Improvements relating to composite structures and structural elements
IPC: E04C2/34
Filed: 1940-12-20
Abstract: 572,412. Building elements. RHILLIPS, W. A. Dec. 20, 1940, No. 17960. [Class 20 (iv)] A structural element adapted to be used in the construction or strengthening of walls, floors, roofs and numerous other structures comprises a superficial metallic member or plate and elongated reinforcing members comprising rods or bars integral with or secured to one face of the member which rods or bars are adapted to be embedded in concrete &c. to form reinforcement therefor while the superficial member provides a facing for the concrete. Fig. 5 shows one such metallic plate 10 having reinforcement rods 12, 13 of wavy form having: alternate high and low crests welded to the inner face of the plate and a second metallic plate 11 having corresponding wavy reinforcement rods 19, 24, the two plates being spaced apart and held together by other rods 25, 26 threaded through the continuous crests and the intervening space filled in with concrete. At the ends of the plates the crests project beyond the plates to enable them to be connected to the end crests of the adjacent elements with the plates in abutting relationship.
Patent GB-1391293-A (GB)
Title: Photographic exposure control apparatus
IPC: G03B15/04
Filed: 1973-04-13
Abstract: 1391293 Cameras POLAROID CORP 13 April 1973 [24 April 1972 16 Feb 1973] 17966/73 Heading G2A A camera has a switch S4 connected to a flash firing circuit 476 and arranged to be opened before and after exposure to prevent flash-lamps from being triggered by spurious signals e.g. from operation of an electric motor used in a self-processing reflex camera to raise the reflex mirror and drive the processing rollers. On depressing the release button, a solenoid 172 is energized to close shutter blades (140, 142,) Fig.2, (not shown), the blade movement changing over S4 to disable firing circuit 476 and energize a motor to raise a reflex mirror (50). Mirror movement opens a switch S5, which energizes a solenoid 240 if a flash assembly (234) has been attached, and opens a switch S3 to de-energize the solenoid 172 whereby the shutter starts to open, blade movement changing over S4 to energize the firing circuit 476. If scene illumination is high a photo-electric firing circuit times out and closes the shutter. Otherwise the blades open to a valve dependent on the focusing of the objective, and solenoid 240 is de-energized to send a pulse 570 (Fig.14) to switch an SCR 566a on. This fires a lamp 552a producing a signal on line 558 which operates a switch 444 to suppress photo-electric control and charges a capacitor 546, which eventually operates a trigger 358 to close the shutter. Shutter closure changes over S4 again to disable firing circuit 476 and to energize the motor to process the exposed film unit and cock the reflex mirror (50). A safety timer (580), Fig.8 (not shown) closes the shutter after a pre-  determined time if the other timers fail.
Patent GB-1478233-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1975-04-30
Abstract: 1478233 Electronic timepieces SUWA SEIKOSHA KK 30 April 1975 [1 May 1974] 18080/75 Heading G3T In an electronic timepiece, logic circuits return the timepiece to its normal time indicating state automatically at the end of a predetermined period after correction of time indication has been performed. Alternatively the automatic return may be following an alarm display or after displaying the time in a time zone other than that in which the timepiece is located. As shown, a crystal controlled oscillator circuit 1 is followed by frequency divider counters 2-5 which feed B, C, D signals to a decoder 6. The decoder outputs are fed to EX-OR gates EX 1 ---EX n  together with a signal from an output of the divider at between 32 and 64Hz, to drive a liquid crystal display 7. Each time a function selector switch S 1  is closed flip-flops FF 3 , FF 4  change state and their outputs Q 3 , Q 4  change, successively enabling AND gates A 1  to A 3  to pass a signal from a switch S 2  when closed. The fourth time S 1  is closed the said flipflops return to the initial state wherein normal timekeeping and displaying is resumed. In state 1 of FF 3 , FF 4 , gate A 1  passes the signal from S 2  to reset the dividers 2, 3 thereby resetting the seconds indication to zero. In state 2, gate A 2  passes the signal via an EX-OR gate EX 1 ' to an input I 4  of divider section 4, to advance the minutes indication by unity. Repeated operation of S 2  thus enables correction of the minutes indication. In state 3, gate A3 passes the signals, due to repeated operation of S 2 , to an input Is of divider section 5 via EX 2 ', to correct the hours indication.  The states of flip-flops FF 1 , FF 2  are changed by a 1/60 Hzisignal from divider section 3. One or two minutes after the last operation of S 1 , an output Q 2  becomes logic "1" and flip-flops FF 3 , FF 4  are reset to zero. Thus whatever the states of FF 3 , FF 4  after correction of the time indication they always return automatically to state O, i.e. the normal running state, one or two minutes thereafter.
Patent GB-152445-A (GB)
Title: Improvements in machines for polishing bowls, vases and like spun sheet metal work
IPC: B24B19/00
Filed: 1920-04-21
Abstract: 152,445. Marris, R. G. April 21, 1920. Disk, wheel, and roller apparatus.-A machine for polishing metal articles, such as bowls, vases, and like spun sheet-metal articles, comprises a chuck 1, adapted to receive the article 2, mounted on a vertical spindle 3 rotated through bevel-gearing 4 by a power shaft 5 and adjustable up and down by means of a screwed sleeve 6 loosely surrounding the spindle and moved, through an internally screwed gear-wheel 7 by a hand-wheel 10. The sleeve is prevented from rotating by a key and a keyway 11, and upwards movement of the sleeve is limited by a stop 14 on an extension 13 of the spindle 3. The article is polished by the periphery of a mop 16 mounted on a spindle 17 carried by an arm 18 swinging about a shaft 19 and having an extension 20 serving as a handle and to receive a balance weight 21, movement of the arm being limited by a stop 23; the spindle is driven by chain gearing from the shaft 5. In operation, the mop rests against the article, and this is raised as required by means of the handwheel, thus bringing the mop into contact with the whole of the surface of the article.
Patent GB-168473-A (GB)
Title: Improvements in and relating to artificial limbs
IPC: A61F2/60
Filed: 1920-07-02
Abstract: 168,473. Lowry, F. J. July 2, 1920. Limbs, artificial. - The lower portion 14 of an artificial limb, pivoted to the upper portion 1 at 13, particularly an artificial leg, is operated by electrically - operated means comprising two intermeshing wheels 7, 9 mounted on shafts within the upper portion of the leg and rotated by an electric motor 5 driven by a battery 3 screwed within the upper portion of the leg. A projection 10 on the lower wheel 9 engages once per revolution with a projection 11 fixed to the lower portion of the leg, thus swing- ing the lower portion rearwardly until the projection 11 clears the projection 10. Alternatively the motor and the rotating wheels may be housed within the lower portion of the leg and the projection 11 attached to the upper portion.
Patent GB-758632-A (GB)
Title: Improvements relating to wagons for carting silage
IPC: B60P1/38
Filed: 1952-07-18
Abstract: 758,632. Vehicles equipped with endless conveyer floors. LINES, E. W. P. Oct. 19, 1953 [July 18, 1952], No. 18158/52. Class 78 (4). The driving rollers 6, 7 for the endless belt floor 5 of a vehicle for laying material down in a trench silo are driven by a rope 11 wrapped around drums 6a, 7a and suitably anchored so that movement of the vehicle drives the endless belt. The belt and its driving rollers and drums may be carried by a frame adapted for attachment to an existing vehicle. The belt 5 is of waterproof canvas and its upper run is supported by rollers 9. The rate of unloading is controlled by a manually controlled tine wheel 21 and by a further tine wheel 17 driven manually through a belt 18 or from the shaft of the driving roller 7 through a belt or chain 20. The sides 13 of the vehicle may be of canvas or wire. The belt 5 is also used in loading the vehicle from one end.
Patent GB-179097-A (GB)
Title: Improvements in closures for water bottles and the like
IPC: B65D47/06
Filed: 1921-07-06
Abstract: 179,097. Schrader's Son, Inc., A., (Assignees of Schweinert, M. C.). May 5, 1921, [Convention date]. Stoppers, screw.-Relates to closures for water bottles &c. and particularly those of the type described in Specification 176,307. The socket member C, Fig. 2, and the stopper member B, Fig. 5, are constructed of sheet metal, and the base of the socket is reinforced by a plate I, Figs. 2 and 4, perforated to allow the passage of the vent tube E and also shaped so that the openings therein register with openings H in the socket. The vent tube is connected to the plate I and the socket by flanges J, K. The stopper B, which consists of two parts united by a flange at T, has a flattened cylindrical portion N which constitutes a manipulating-handle and a reception chamber for the vent tube, the lower member being threaded at M. An opening O is provided for the reception of the tube E, and packing Q is adapted to engage a shoulder L in the socket.
Patent GB-1575289-A (GB)
Title: Compensating for time errors in measuring devices employing analog-stochastic converters
IPC: G01R21/133
Filed: 1978-05-09
Abstract: Timing errors in single-channel multiplexing of different measurement values can be compensated for by interpolation. When analog/stochastic-value converters are used for a number of input signals, this arithmetic averaging by addition is not suitable since the results of addition must not exceed the range of probability between zero and one in the stochastic technique. For this reason, alternating sampling is used for compensating for the timing errors when using analog/stochastic-value converters for a number of input signals, in such a manner that products of the associated value pairs are continuously formed after each sampling and conversion in that the value just obtained is multiplied by the associated value previously stored. As a result, instantaneous values are formed which produces a constant timing error of the samples with a constant sampling frequency of the input signals in comparison with the reference frequency of a standard. This constant value can be completely compensated for by calibrating the device.
Patent GB-1358864-A (GB)
Title: Demodulators
IPC: H04N5/92
Filed: 1971-06-02
Abstract: 1358864 Pulse modulation; television; frequency demodulation INTERNATIONAL VIDEO CORP 2 June 1971 [31 Aug 1970] 18594/71 Headings H4L H4F and H3A A pulse demodulation circuit, more particularly for demodulating pulse interval modulated (PIM) signals in video tape recording systems, is provided with means for automatic dropout blanking. Reference is made to dropouts which occur in the playback of slant track video tapes at the crossover point from one tape edge to the other. As described, in PIM signals the half period of the modulated wave is a linear function of the modulating signal amplitude at the end of the half period. As shown in Fig. 1, the input signal at terminals 2, 4 is of the type shown in Fig. 3 (a) extending above threshold +V T  and below threshold -V T  or is within these threshold levels, Fig. 2 (a), the latter condition representing a dropout. In the case of a dropout, transistors 10, 12 are cutoff and transistor 30 is on and acts as a constant current source, in conjunction with transistor 32, adjustable by resistor 36. Since transistors 10, 12 are cut off, current flows via diodes 38, 40 and multivibrator 44, 42, which includes emitter followers 68, 70, will be free-running at a frequency to provide a blanking level output via transistors 76, 78, low pass filter 88 and terminal 95. Fig. 2(b) and 2(c) shows the inputs to transistors 76, 78 respectively and Fig. 2(d) the input to filter 88. In the case of a normal signal input, Fig. 3, transistors 10, 12 conduct alternately and in view of the turn-on delay the diodes 38, 40 are virtually out of circuit. Since the multivibrator 44, 42 is now controlled by transistors 10, 12 it is no longer free-running, the inputs to transistors 76, 78 being as shown in Fig. 3(b), 3(c) and the input to filter 88, Fig. 3(d). In a modification, Fig. 4 (not shown) transistors 76, 78 are replaced by a diode ring and provision is made for blanking also by the application of a negative gating pulse.
Patent GB-1473509-A (GB)
Title: Method of carrying out heat-requiring chemical and/or physical processes in a fluidised bed
Inventor: GOERLING K
IPC: C10B19/00
Filed: 1974-04-29
Abstract: 1473509 Coking oils in fluidized bed reactors BOLIDEN AB 29 April 1974 [30 April 1973 23 Oct 1973 1 March 1974] 18699/74 Heading C5E [Also in Divisions B1 C7 F4 and H5] In a reactor for producing coke by cracking hydrocarbons heat is at least partially generated in a fluidized coke bed 14 by electromagnetic induction using a coil 15 surrounding the reactor chamber and fed with alternating current, whilst it is arranged that a ratio of least cross dimension d of the bed in plan to penetration depth # if the inductive field of 0À2<d/#<1À5 is maintained, the resistivity of the bed being between 10<SP>-1</SP> and 10 ohm-m. The fluidized bed is supported by a grate 13 and hydrocarbons are injected into it through pipes 16. Whilst fluidizing gases are fed into the reaction chamber via a pipe 11 and pass out of the chamber via pipe 12. Coke is tapped from the bed through a discharge pipe 17. Combustible gaseous products from the coke bed can be used as fuel and part of these products can be fed back again into the reactor chamber when the supply of external fluidizing gas can be reduced or interrupted. The reactor can also be used for refining petroleum coke by removing sulphur from it, the temperature and residence time of material in the bed being adjusted accordingly.
Patent GB-405878-A (GB)
Title: Improvements in carbon paper
IPC: B41L1/16
Filed: 1933-07-03
Abstract: 405,878. Carbon papers. CLARKE, W. E., 200, Colbeck Street, Toronto, Canada. July 3, 1933, No. 18833. Convention date, July 15, 1932. [Class 16.] To facilitate the handling of carbon sheets and work sheets, and the alignment of the work sheets, each carbon sheet has a portion 3 cut away near the top end and has a plain margin extension 1 adapted to project beyond the edges of the work sheets, the sheet being also formed with an opening 4 including a part at least of the plain margin, so as to expose a portion of the edges of the work sheets and to determine their alignment. The carbon sheets are removed by grasping them by the margins 1, the work sheets being held at the part where the cut-away portions 3 occur. The uncoated margin may lie at either side of the sheet, and the opening 4 may be replaced by recesses in the edges.
Patent GB-932352-A (GB)
Title: Synthesis of 8-isotestosterone
Inventor: BANERJEE DILIP KUMAR
IPC: C07J75/00
Filed: 1960-05-27
Abstract: <FORM:0932352/IV(a)/1> <FORM:0932352/IV(a)/2> <FORM:0932352/IV(a)/3> <FORM:0932352/IV(a)/4> <FORM:0932352/IV(a)/5> <FORM:0932352/IV(a)/6> The invention comprises trans-1b -hydroxy (and acetoxy) - 8 - methyl - 4,5-(31-methyl-41-hydroxybenzo)-hydrindane of the formulae VII and VIII shown in the Figure, 1b ,2a -(31-acetoxycyclopentano)-2, 5-dimethyl-6b -hydroxy-1a ,2,3,4,4aa ,5a ,6a ,7,8,8aa  - decahydronaphthalene of the formula IX shown in the Figure, and 1b ,2a  - (31 - acetoxycyclopentano) - 2,5 - dimethyl - 6 - keto-1a ,2,3,4,4aa ,5a ,6,7,8,8aa -decahydronaphthalene of the formula X shown in the Figure, and a process for the preparation of 8-isotestosterone of the formula I shown in the Figure by demethylating trans-1b -hydroxy - 8 - methyl-4,5-(31-methyl-41-methoxybenzo)-hydrindane of the formula IV shown in the Figure, for example, by heating with methyl magnesium iodide or with anhydrous pyridine hydrochloride, to form the above compound VII, monoacetylating this compound to form the above compound VIII, hydrogenating this compound, for example, in the presence of a hydrogenation catalyst such as ruthenium dioxide, ruthenium on carbon, rhodium on carbon, or rhodium on alumina, to form the above compound IX, oxidising this compound to form the above compound X, and condensing this compound with vinyl methyl ketone or dialkylaminobutanone-2-methiodide.  Trans-1b -hydroxy- 8-methyl-4, 5-(31-methyl-41-methoxybenzo)-hydrindone of the formula IV shown in the Figure is prepared by condensing 5-methyl-6-methoxy-tetralone with ethyl formate in the presence of sodium ethoxide to form 2-hydroxymethylene-5-methyl-6-methoxytetralone, heating this compound with hydroxylamine hydrochloride in glacial acetic acid to form 5-methyl-6-methoxy-3,4-dihydro (2,1d)-isoxazole, heating this compound with methyl iodide in the presence of sodium ethoxide to form 2,5-dimethyl- 2-cyano- 6-methoxytetralone, condensing this compound with dimethylsuccinate to give methyl-1-keto-8-methyl-4,5-(31-methyl-41-methoxybenzo) - D 3(9)-hydrindene-3-carboxylate, saponifying this compound with barium hydroxide and decarboxylating the resulting free acid to form 1b -hydroxy-8-methyl- 4,5- (31-methyl- 41-methoxybenzo) - D 3(9)-hydrindene, and hydrogenating this compound.  Specification 932,353 is referred to.
Patent GB-444871-A (GB)
Title: Improvements in and relating to methods of impregnating condensers, cables, and the like with organic substances
IPC: H01B3/18
Filed: 1934-06-26
Abstract: 444,871. Preserving cables &c. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. June 26, 1934, No. 18849. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 27, 1934]. [Class 140] The fibre or paper outer coverings of underground cables and pipes are impregnated with an aqueous emulsion, dispersion or suspension of mineral coal pitch, coal oil or asphalt at normal temperatures and the water is then evaporated. The emulsion is made with the aid of protective colloids such as soap or saponin using the smallest possible quantity of water.
Patent GB-624950-A (GB)
Title: A device for facilitating the feeding of wood or other non-metallic work pieces to asawing machine
IPC: B27B13/00
Filed: 1947-07-16
Abstract: 624,950. Sawing. CREASEY, A. E. July 16, 1947, No. 18924. [Class 145(ii)]  A device for facilitating the feeding of a wood or other non-metallic work piece to a sawing machine such as a bandsaw, comprises the combination with a carrier a having a pair of relatively adjustable parts b, c, of a pair of steadies in the form of rollers k, between which the cutting blade can pass, and a pair of work-guiding rollers q respectively associated with the steadies so that either roller can co-operate with a pattern or template r whilst the workpiece is being fed to and past the saw blade, the axes of the rollers q being at right angles to those of the steadies. The steadies k preferably have convex surfaces and are mounted loosely on adjustable pins i, the outer ends of which pins carry further pins p on which the rollers q are freely rotatable.